1
3CX Basic Certification Practice
Questions and Verified Answers Latest
2025-2026 Edition. Graded A
Question: Are supported IP phones still covered when these have not been
provisioned via 3CX, run custom templates and/or use outdated firmware
versions? - ANSAnswer: No
Question: Can 3CX be installed, activated and operated without internet
access? - ANSAnswer: No
Question: Can you provision and use remote extensions when using a
"Standard Edition" license key? - ANSAnswer: No
Question: Does the firewall checker check if ports have been altered by a
firewall / router when data traverses it? - ANSAnswer: Yes
Question: If the host running 3CX is also used as a DNS server, is it
recommended to relocate 3CX to another host dedicated for 3CX? -
ANSAnswer: Yes
Question: Is iOS 13 the minimum version required to install the 3CX App on
an iPhone? Answer: - ANSNo (It's actually iOS 12)
Question: True or False: A 3CX App can use the same 3CX extension
number as a desktop IP phone. - ANSAnswer: True
1
, 2
Question: True or False: Configuring a remote extension in STUN mode
requires you to only port forward/NAT the SIP Port (Default 5060
UDP/TCP) on your Firewall - ANSAnswer: False
Question: True or False: Configuring inbound rules for DIDs allows you to
define different routing destinations, based on the time of day -
ANSAnswer: True
Question: True or False: Each IP phone can be provisioned to have a
different Ring Tone - ANSAnswer: True
Question: True or False: Every Digital Receptionist can be configured with
a different language prompt set, allowing a multi language Digital
Receptionist structure. - ANSAnswer: True
Question: True or False: In order to be able to run the 3CX Web
Configuration Wizard remotely, you must have HTTP port TCP:5015 port
forwarded on the Firewall. - ANSAnswer: True
Question: True or False: Provisioning is a term used, amongst other things,
when IP phones load a predefined configuration file - ANSAnswer: True
Question: True or False: SIP Forking is a term used when a call is
forwarded to another extension when the call is not answered within a
certain time frame. - ANSAnswer: False
2
3CX Basic Certification Practice
Questions and Verified Answers Latest
2025-2026 Edition. Graded A
Question: Are supported IP phones still covered when these have not been
provisioned via 3CX, run custom templates and/or use outdated firmware
versions? - ANSAnswer: No
Question: Can 3CX be installed, activated and operated without internet
access? - ANSAnswer: No
Question: Can you provision and use remote extensions when using a
"Standard Edition" license key? - ANSAnswer: No
Question: Does the firewall checker check if ports have been altered by a
firewall / router when data traverses it? - ANSAnswer: Yes
Question: If the host running 3CX is also used as a DNS server, is it
recommended to relocate 3CX to another host dedicated for 3CX? -
ANSAnswer: Yes
Question: Is iOS 13 the minimum version required to install the 3CX App on
an iPhone? Answer: - ANSNo (It's actually iOS 12)
Question: True or False: A 3CX App can use the same 3CX extension
number as a desktop IP phone. - ANSAnswer: True
1
, 2
Question: True or False: Configuring a remote extension in STUN mode
requires you to only port forward/NAT the SIP Port (Default 5060
UDP/TCP) on your Firewall - ANSAnswer: False
Question: True or False: Configuring inbound rules for DIDs allows you to
define different routing destinations, based on the time of day -
ANSAnswer: True
Question: True or False: Each IP phone can be provisioned to have a
different Ring Tone - ANSAnswer: True
Question: True or False: Every Digital Receptionist can be configured with
a different language prompt set, allowing a multi language Digital
Receptionist structure. - ANSAnswer: True
Question: True or False: In order to be able to run the 3CX Web
Configuration Wizard remotely, you must have HTTP port TCP:5015 port
forwarded on the Firewall. - ANSAnswer: True
Question: True or False: Provisioning is a term used, amongst other things,
when IP phones load a predefined configuration file - ANSAnswer: True
Question: True or False: SIP Forking is a term used when a call is
forwarded to another extension when the call is not answered within a
certain time frame. - ANSAnswer: False
2
